that's got to be Dragonball, which was one of the first anime that got me reading the manga as well.
Furthermore I started reading Doujinshi's of the series.
I remember watching sailor moon, but that never got me really into it.
Inuyasha It was a loooooooooooooong time ago XD every time I came home from elementary school, I watched anime on RTL II in German (Captain Tsubasa, Pretty Cure, Detective Conan, Inuyasha, Sailor Moon etc.) and Inuyasha - it was love at first sight~
Ayashi no Ceres! It was my very first anime with original sound in 2002. And I fall in love with japanese language and anime. I watched anime before that too but only in German and Hungarian.
The first Animes I ever watched were Pokemon and Dragonball Z in primary school but they weren’t the ones that turned me into an Otaku and made me a part of the Manga and Anime scene.
The Anime that did was Naruto, it managed to get me addicted and brought my interest in Anime and Manga to the next level.